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High Availability in AWS

A presentation that investigates strategies and tools for high availability in Amazon Web Services. This is appropriate for systems administrators and cloud architects, along with anyone else looking to get started with or improve their knowledge of HA design in AWS.

High Availability in AWS

2.
https://www.adair.tech Adair Technology, LLC
INTRODUCTION
ABOUT ME
▸ President of Adair Technology, LLC.
▸ IT infrastructure consulting. Specializing in
cloud architecture and implementation.
▸ Many years of experience with systems
administration and architecture and cloud
administration and architecture.

3.
https://www.adair.tech Adair Technology, LLC
INTRODUCTION
WHAT IS BEING COVERED
▸ Thinking about HA in the cloud.
▸ Various strategies.
▸ What is best for you.
▸ What are the things you need to put in place for each
design.
▸ What tools and services can be used to meet those needs
▸ Q & A.

8.
https://www.adair.tech Adair Technology, LLC
THINKING ABOUT HA IN THE CLOUD
PARTIALLY REDUNDANT SYSTEMS
▸ More complex.
▸ Requires more upfront planning.
▸ Determine what is essential and what is not.
▸ Replicate only what you have to.
▸ More cost effective.
▸ Less complex.
▸ Fits quite a few use cases.

9.
https://www.adair.tech Adair Technology, LLC
THINKING ABOUT HA IN THE CLOUD
“RECONSTRUCTABLE” SYSTEMS
▸ No active redundancy.
▸ No replication or syncing.
▸ Good backups of data are essential.
▸ Takes upfront setup work.
▸ Cheap.
▸ Requires good change management and version control processes.
▸ Has longer recovery times than other options.

15.
https://www.adair.tech Adair Technology, LLC
“RECONSTRUCTABLE” SETUPS
STRATEGY
▸ Do not duplicate anything.
▸ Have excellent and up to date backups.
▸ Have all of your infrastructure deﬁned in code and
images.
▸ In case of emergency, reconstruct the infrastructure
quickly and with little thought or planning needed.